HuaWei ❀ 配置GRE Over IPv4
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2024-02-14 13:08:46
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配置GRE Over IPv4
如下图所示,R1、R2、R3使用OSPF协议路由可达,要求在R1和R3之间建立直连链路,部署GRE隧道,通过静态路由指定到达对端的报文通过隧道接口转发;
配置接口IP地址:
[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip address 12.1.1.1 24
配置OSPF:
[r1]ospf 100 router-id 1.1.1.1
[r1-ospf-100]area 0
[r1-ospf-100-area-0.0.0.0]network 12.1.1.0 0.0.0.255
[r2]ospf 100 router-id 2.2.2.2
[r2-ospf-100]area 0
[r2-ospf-100-area-0.0.0.0]network 12.1.1.0 0.0.0.255
[r2-ospf-100-area-0.0.0.0]network 23.1.1.0 0.0.0.255
[r3]ospf 100 router-id 3.3.3.3
[r3-ospf-100]area 0
[r3-ospf-100-area-0.0.0.0]network 23.1.1.0 0.0.0.255
配置GRE:
[r1]int Tunnel 0/0/0
[r1-Tunnel0/0/0]ip address 100.1.1.1 24
[r1-Tunnel0/0/0]tunnel-protocol gre
[r1-Tunnel0/0/0]source 12.1.1.1
[r1-Tunnel0/0/0]destination 23.1.1.2
[r3]int t0/0/0
[r3-Tunnel0/0/0]ip address 100.1.1.2 24
[r3-Tunnel0/0/0]tunnel-protocol gre
[r3-Tunnel0/0/0]source 23.1.1.2
[r3-Tunnel0/0/0]destination 12.1.1.1
配置静态路由或者OSPF多进程:
静态路由:
[r1]ip route-static 3.3.3.0 255.255.255.0 Tunnel 0/0/0
[r3]ip route-static 1.1.1.0 255.255.255.0 Tunnel 0/0/0
OSPF 200:
[r1]ospf 200 router-id 1.1.1.1
[r1-ospf-200]area 0
[r1-ospf-200-area-0.0.0.0]network 1.1.1.0 0.0.0.255
[r1-ospf-200-area-0.0.0.0]network 100.1.1.0 0.0.0.255
[r3]ospf 200 router-id 3.3.3.3
[r3-ospf-200]area 0
[r3-ospf-200-area-0.0.0.0]network 3.3.3.0 0.0.0.255
[r3-ospf-200-area-0.0.0.0]network 100.1.1.0 0.0.0.255
查看配置结果:
[r1]display ip routing-table 3.3.3.3
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Table : Public
Summary Count : 1
Destination/Mask Proto Pre Cost Flags NextHop Interface
3.3.3.0/24 Static 60 0 D 100.1.1.1 Tunnel0/0/0